The dielectric relaxation times() and
the dipole moments() of the
binary mixtures of different molar concentrations of acetone(CH3COCH3)
in the binary mixtures of acetone and N-methylacetamide(NMA) in benzene solutions
have been calculated by using standard standing wave microwave techniques and
Gopala Krishna’ssingle frequency(9.88GHz) concentration variational
method at different temperatures (25, 30, 35, 40°C).The dielectric
relaxation process has been found to be an activated process. The energy
parameters (H,F, S) for the dielectric relaxation process of binary mixtures
containing 30% mole-fraction of acetone have been calculated at the respective
given temperatures and the comparison has been made with the corresponding
energy parameters (H,F, S) for the viscous flow. On the basis of the observations, it is
found that the dielectric relaxation process can be treated as the rate process
like the viscous flow process. The solute-solute and solute-solvent molecular
associations have been predicted.

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